XML 155 R137.htm IDEA: XBRL DOCUMENT v3.25.0.1
BENEFIT PLANS - Weighted-Average Actuarial Assumptions (Detail)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Other Postretirement Benefit Plans, Defined Benefit      
Weighted-average actuarial assumptions:      
Discount rate - net periodic benefit cost 5.04% 5.28% 2.94%
Discount rate - benefit obligations 5.60% 5.04% 5.28%
Health care cost trend rates [1] 6.30% 6.80% 6.50%
Defined benefit plan, ultimate health care cost trend rate 3.70% 3.70% 3.70%
Defined benefit plan number of years that rate reaches ultimate trend rate 49 years 50 years 51 years
Japan | Pension Plan      
Weighted-average actuarial assumptions:      
Discount rate - net periodic benefit cost 1.84% 1.95% 0.94%
Discount rate - benefit obligations 2.31% 1.84% 1.95%
Expected long-term return on plan assets 2.00% 2.00% 2.00%
Rate of compensation increase 5.90%    
U.S. | Pension Plan      
Weighted-average actuarial assumptions:      
Discount rate - net periodic benefit cost 5.33% [2] 5.24% [3] 2.94%
Discount rate - benefit obligations 5.60% 5.04% 5.28%
Expected long-term return on plan assets 4.75% 4.75% 5.50%
Rate of compensation increase   4.00% 4.00%
[1] For the years 2024, 2023 and 2022, the health care cost trend rates are expected to trend down to 3.7% in 49 years, 3.7% in 50 years, and 3.7% in 51 years, respectively.
[2] An interim valuation was required due to the U.S. pension plan settlement. The rate shown is the rate used on the interim valuation date of November 1, 2024.
[3] An interim valuation was required due to the U.S. pension plan curtailment. The rate shown is the rate used on the interim valuation date of June 12, 2023.